characterization of pathogenic aeromonas veronii bv. veronii associated with ulcerative syndrome from chinese longsnout catfish (leiocassis longirostris günther).273 bacterial strains were isolated from 20 chinese longsnout catfish samples. the biochemical characteristics of all strains conformed to the species description of aeromonas veronii bv. veronii on the basis of vitek gni+ card. furthermore, 16s rdna, gyrb and rpod sequences of the representative strain py50 were sequenced and showed high similarity with a. veronii bv. veronii in genbank. antibiotic-resistance of the representative strain py50 was assessed by the kirby-bauer disk diffusion metho ...201224031843
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